Posted in | Mirrors

Optical Surfaces Off-Axis Parabolic Mirrors

Optical Surfaces Ltd specialises in the design and manufacture of off-axis paraboloids. The company has developed manufacturing techniques over its 40 years history blending modern methods with a high degree of craftsmanship. With this combination we are able to offer a reliable service tailored to individual customer needs. Whether the requirement is for custom optics or off the shelf mirrors, we work to the highest specifications possible.

A cost effective solution

The solution to many problems in optical design may be found by using off-axis parabolas (OAPs). They can often provide the most cost effective answer with no compromise in performance. OAP's offer the advantage of an unobstructed aperture, giving access to the focal plane in system designs. This ensures pure diffraction patterns on axis with no spikes caused by "spiders" or other obstructions. This is particularly important if MTF and similar measurements are being made. Off-axis parabolic mirrors are especially suitable for broadband and multiple wavelength applications due to their completely achromatic characteristics.


  • Collimators
  • Beam Expanders
  • FLIR testing
  • High power laser beam focusing
  • Target projection
  • MTF reference surfaces
  • MRTD test systems
  • Spectrograph mirrors

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